Bell, Robert J.T.
An elementary treatise on coordinate geometry of 3D / Robert J.T. Bell - 3rd ed. - Delhi : Mac millan ltd. , 1944. - xviii, 448p. : ill. ; 21 cm.
0333919718
Geometry.
516
An elementary treatise on coordinate geometry of 3D / Robert J.T. Bell - 3rd ed. - Delhi : Mac millan ltd. , 1944. - xviii, 448p. : ill. ; 21 cm.
0333919718
Geometry.
516